SedLine Sedation Monitor Chapter 5: Menu Options
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SEFL and SEFR
About
An informational read-only screen with definition of SEF:
The Spectral Edge Frequency (SEF) identifies the frequency below which 95% of the total power
of the patient’s EEG is located. SEF is a common EEG power signal processed parameter
represented on the DSA display’s 0-30 Hz scale. 95% SEF power is displayed as a white
horizontal line and as a value for both left and right frontal-prefrontal hemispheres of the
brain. EF values display the predominant EEG frequency and corresponding changes.
Trends
Options Description Factory Default Selectable Settings
Y-Axis Max
Highest SEF value that can be displayed 30 Hz
5 Hz to 30 Hz
(5% increments)
Y-Axis Min Lowest SEF value that can be displayed 0
0 to 25 Hz
(5 db increments)
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